Live Blog: Remembering 9/11, A Decade On

People paused by one of two waterfall pools at the National September 11 Memorial on Sunday, as the site hosted a ceremony to mark the 10th anniversary of the terrorist attacks.

A day of remembrance begins Sunday morning at 8:35 a.m. EST with a somber ceremony at the World Trade Center site and continues across the U.S. The Wall Street Journal‘s staff will mark the day’s events and monitor the intensified security efforts in New York and Washington, following warnings of a possible al Qaeda plot tied to the Sept. 11 anniversary. The ceremony in Lower Manhattan focuses, as it has in years past, on a three-hour reading of the names of those who perished exactly 10 years ago in the terrorist attacks. Family members whose loved ones perished at the towers will recite the names, and a host of officials will deliver readings. The ceremony will pause for silence at six different times, marking the moments when the four planes struck and the two towers collapsed. This year, for the first time, family members and other participants will visit the new National September 11th Memorial, which opens to the public on Monday. President Barack Obama will participate, joined by former President George W. Bush, former New York Mayor Rudy Giuliani and other political leaders. The president is also set to visit Shanksville, Pa., and the Pentagon, where he will lay wreaths to honor the lives lost. Follow all the events in The Journal’s live blog and see complete coverage in our special report: A Decade After 9/11.